Keyboard stand



FIG. 1 is a perspective view of a keyboard stand showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a right side elevational view thereof; and the left side being a mirror image. 

The ornamental design for keyboard stand, as shown and described. 